| Geilenkirchen to Settimo Torinese | 410.04 mi (659.90 km) |
| Geilenkirchen to Seveso | 392.91 mi (632.33 km) |
| Geilenkirchen to Sezze | 732.67 mi (1,179.12 km) |
| Geilenkirchen to Siano | 813.09 mi (1,308.55 km) |
| Geilenkirchen to Siena | 582.01 mi (936.66 km) |
| Geilenkirchen to Signa | 547.91 mi (881.78 km) |
| Geilenkirchen to Silea | 463.57 mi (746.05 km) |
| Geilenkirchen to Silvi Paese | 692.91 mi (1,115.12 km) |
| Geilenkirchen to Sinalunga | 596.54 mi (960.04 km) |
| Geilenkirchen to Siniscola | 738.12 mi (1,187.89 km) |
| Geilenkirchen to Sinnai | 819.52 mi (1,318.89 km) |
| Geilenkirchen to Siracusa | 1,060.78 mi (1,707.17 km) |
| Geilenkirchen to Solaro | 393.91 mi (633.93 km) |
| Geilenkirchen to Soliera | 484.27 mi (779.35 km) |
| Geilenkirchen to Solofra | 814.98 mi (1,311.59 km) |
